Swift & Objective-C: How to Use 2 Languages in Your Project | Codementor

Choosing between Swift and Objective-C could be confusing for beginners. And similarly, many of you are likely still using Objective-C in your older iOS applications. Converting your existing apps from Objective-C to Swift doesn’t make a whole lot of sense but using Swift going forward is a smart way to future proof your app while learning a new language at the same time.